Aviation Dangerous Goods Quiz: Test Your IATA DGR Knowledge
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Disclaimer
This quiz is for educational purposes only. It does not replace official safety training, certification, or regulatory compliance programs.
High-Frequency IATA DGR Errors That Cause Rejections, Delays, and Load Risk
1) Misidentifying the lithium battery entry (UN number + configuration)
A common failure is treating all batteries as the same article and selecting the wrong entry. Prevent this by verifying chemistry (ion vs metal), configuration (batteries alone vs packed with equipment vs contained in equipment), and the correct UN 3480/3481 or UN 3090/3091 selection before you ever look at the packing instruction.
2) Applying the wrong packing instruction section (Section II vs fully regulated)
Section II is often interpreted as “not dangerous goods.” In practice, Section II still has strict limits and specific package marks and operator communication requirements. Avoid this by checking watt-hour rating or lithium content against the correct table and confirming whether additional labels, documentation, or quantity restrictions push the shipment into a fully regulated section.
3) Missing subsidiary risks or mixing hazards on the paperwork
Dual-hazard substances are frequently documented correctly but labeled incorrectly (or vice versa). Your control is a one-to-one match: the DGR List drives the required primary label, subsidiary label(s), and the declaration entries; your package must reflect the same hazards stated on the Shipper’s Declaration.
4) Passenger vs cargo aircraft limits not verified at build-up
Acceptance may be correct, but the wrong aircraft type is selected later. Prevent this with a final “PAX/CAO” check that confirms quantity limits, required “Cargo Aircraft Only” indication where applicable, and compatibility with the operator’s restrictions.
5) “Fixing” a Shipper’s Declaration after signature
Hand edits (cross-outs, overwriting, informal initials) can make an otherwise safe shipment noncompliant. If a safety-critical field is wrong—UN number, proper shipping name, class, packing group, quantity, packing instruction, or authorization—void and reissue a clean, correctly signed declaration.
Decision Drills Based on Real IATA DGR Acceptance and Loading Calls
Use these scenarios to practice the same judgment the quiz measures
Dual-hazard liquid at acceptance: A shipper offers a flammable liquid that also meets corrosive criteria. The Shipper’s Declaration lists the subsidiary risk, but the package shows only the flammable label.
- Accept or reject—and what must be corrected first?
- Which elements must match between the DGR List entry, package labels, and the declaration?
Battery-powered equipment claimed as Section II: A laptop shipment is tendered as lithium ion batteries contained in equipment under a Section II option, but the battery rating is near the upper limit and multiple devices are packed in one outer package.
- Does it stay in Section II, or become fully regulated based on limits/packaging?
- What marks/labels must appear on the outer package, and what operator communication is required?
Passenger vs cargo aircraft quantity limit trap: A Class 8 Packing Group II liquid is packed at a quantity that exceeds passenger-aircraft limits but is within cargo-aircraft limits. The booking is for a passenger flight connection.
- What is the compliant disposition (repack, rebook, or refuse)?
- Where do you verify the aircraft-type limits and any operator variation?
Overpack visibility problem: Two properly labeled packages are placed in an overpack, but the overpack hides the hazard labels and orientation arrows.
- What markings/labels must be reproduced on the overpack?
- When is the “OVERPACK” marking required?
Incorrect proper shipping name formatting: The UN number is correct, but the proper shipping name is abbreviated and the technical name is missing where required.
- Is this a documentation-only correction or a reject/refuse condition?
- What other fields on the declaration must be checked at the same time to avoid compounding errors?
Post-signature correction request: After the Shipper’s Declaration is signed, the shipper asks to change the net quantity and packing instruction to “match what was packed.”
- What is the compliant way to correct it?
- What risks are created if acceptance relies on an altered declaration?
IATA DGR Actions That Most Reduce Dangerous Goods Loading Risk
- Start with the entry, not the package: Confirm proper shipping name, UN number, class/division, packing group, and any special provisions from the DGR List before selecting packaging and labels.
- Don’t treat “Section II” as “not regulated”: Verify limits, package marks, and any required operator communication; when in doubt, move up to the fully regulated option rather than improvising.
- Make labels and paperwork mirror each other: If the declaration shows a subsidiary risk, the package must carry the subsidiary risk label as required—mismatches are a high-confidence rejection.
- Lock in aircraft-type compliance at two points: Check passenger vs cargo aircraft limits at acceptance and again at build-up to prevent an otherwise compliant consignment being loaded onto the wrong aircraft.
- Reissue flawed declarations instead of editing them: When a safety-critical field is wrong, void the Shipper’s Declaration and create a new, clean, properly signed document to preserve traceability and compliance.
Aviation Dangerous Goods (IATA DGR) Glossary With Usage Examples
- UN number
- The four-digit identifier assigned to a dangerous goods entry. Example: “UN 3480” identifies lithium ion batteries shipped by themselves.
- Proper Shipping Name (PSN)
- The standardized name that must be used on documentation and, when required, on package markings. Example: Write the PSN exactly as listed rather than using a trade name.
- Packing Instruction (PI)
- The DGR instruction that defines authorized packaging types, quantity limits, and packing requirements for a specific entry. Example: A lithium battery PI may have different rules for batteries alone versus contained in equipment.
- Section II
- A packing instruction section typically used for limited quantities/conditions (commonly seen with lithium batteries) that still imposes strict limits and package marks. Example: A small battery shipment may qualify for Section II but still requires the correct lithium battery mark.
- Fully regulated (e.g., Section I)
- A shipping option that triggers the full set of dangerous goods requirements (including hazard labels and a Shipper’s Declaration where applicable). Example: Larger lithium battery quantities may require the fully regulated section instead of Section II.
- Subsidiary risk
- An additional hazard class a substance meets, beyond its primary class. Example: A flammable liquid with a corrosive subsidiary risk may require both labels.
- CAO (Cargo Aircraft Only)
- An indicator that a dangerous goods package is forbidden on passenger aircraft and may only move on cargo aircraft under specified conditions. Example: If the entry is CAO at your quantity, booking it on a passenger flight is noncompliant.
- Overpack
- An enclosure used to contain one or more packages for convenience of handling, without changing the packages’ compliance obligations. Example: If labels are hidden by the overpack, they must be reproduced on the outside.
- State/Operator variation
- Additional requirements imposed by a country (state) or airline (operator) that modify baseline DGR compliance. Example: An operator may restrict certain lithium battery shipments more tightly than the general packing instruction.
Authoritative References for IATA DGR, ICAO TI, and Lithium Battery Air Transport
- FAA SafeCargo: How to Ship Dangerous Goods — U.S. regulator overview of shipper responsibilities (classification, packaging, marks/labels, documentation) for air transport.
- FAA: Lithium Battery Resources — Consolidated FAA guidance, campaigns, and reference documents focused on lithium battery air transport risk and compliance.
- ICAO: Lithium Battery Guidance (PDF) — ICAO guidance material that supports consistent application of Technical Instructions requirements for lithium batteries.
- IATA: Dangerous Goods Regulations (DGR) — IATA’s official DGR publication page describing scope, structure, and applicability for air dangerous goods compliance.
- IATA: Lithium Battery Guidance Document (PDF) — Practical shipper-facing guidance aligned to current DGR/ICAO TI provisions for lithium battery shipments.
IATA Dangerous Goods Regulations (DGR) FAQ for Shippers, Forwarders, and Ground Handlers
How does the IATA DGR relate to ICAO Technical Instructions and U.S. requirements?
IATA DGR is an industry manual that operationalizes ICAO Technical Instructions (the baseline international standard for air dangerous goods). In the United States, shipments also have to meet applicable DOT hazardous materials requirements; in practice, your safest workflow is to comply with the DGR entry, packing instruction, and any state/operator variations while ensuring your organization’s hazmat program meets national rules for training, documentation control, and incident reporting.
Why is the lithium battery UN number mistake (UN 3480/3481 vs UN 3090/3091) treated as a serious nonconformance?
The UN number drives the entire compliance path: packing instruction, limits, marks/labels, and operator restrictions. Mixing lithium ion and lithium metal entries can result in the wrong packaging standard and the wrong controls against short circuit and thermal runaway. When the UN number is wrong, acceptance checks (and emergency response information) are no longer reliable, so the consignment should be corrected before it moves.
Does “Section II” mean a lithium battery shipment is not regulated or doesn’t need controls?
No. Section II is a specific compliance option with tight limits and prescribed package markings, and it may also require particular information to be provided to the operator depending on the packing instruction. Treat it as “regulated with simplified documentation,” not as an exemption, and verify that every condition in the applicable table is met before you accept the shipment.
When should a Shipper’s Declaration be reissued instead of corrected?
If a safety-critical element is wrong—such as UN number, proper shipping name, class/division, packing group, packing instruction, quantity, or any authorization—reissue a clean declaration that is correctly completed and signed. Informal edits after signature undermine document integrity and can invalidate acceptance decisions that rely on the declaration.
How do operator variations change an otherwise “by-the-book” DGR shipment?
Operators can impose extra limitations (for example, tighter quantity limits, specific packaging configurations, or pre-acceptance requirements) beyond the baseline packing instruction. Build an acceptance habit of checking variations during booking/acceptance, not after the freight is built and tendered, because late discovery often forces refusals, repacks, or missed flights.
I work airside but not in cargo acceptance—what training-relevant topics overlap with my role?
Ramp, cabin, and security-adjacent roles still need to recognize common indicators of undeclared or misdeclared dangerous goods (especially batteries, aerosols, chemicals, and samples), and to follow reporting and isolation procedures when a suspect item is found. If you want a broader cross-functional check on airside controls, pair this with the Airport Security Test Questions - Free Practice Quiz and the Knowledge Assessment For Cabin Crew to reinforce coordination points between acceptance, security screening, and in-flight safety.
